Immix sets collect flag.

brixen · brixen · commit 5daca40e4ae6 · 2015-09-11T18:48:25.000-07:00
diff --git a/vm/gc/immix.cpp b/vm/gc/immix.cpp
@@ -62,6 +62,7 @@ namespace rubinius {
   ImmixGC::ImmixGC(ObjectMemory* om)
     : GarbageCollector(om)
     , allocator_(gc_.block_allocator())
+    , memory_(om)
     , marker_(NULL)
     , chunks_left_(0)
     , chunks_before_collection_(10)
@@ -172,7 +173,7 @@ namespace rubinius {
   void ImmixGC::collect(GCData* data) {
     gc_.clear_marks();
     collect_scan(data);
-    process_mark_stack();
+    process_mark_stack(memory_->collect_mature_now);
     collect_finish(data);
   }
 
@@ -256,7 +257,10 @@ namespace rubinius {
     // We do this in a loop because the scanning might generate new entries
     // on the mark stack.
     do {
-      for(Allocator<capi::Handle>::Iterator i(data->handles()->allocator()); i.more(); i.advance()) {
+      for(Allocator<capi::Handle>::Iterator i(data->handles()->allocator());
+          i.more();
+          i.advance())
+      {
         capi::Handle* hdl = i.current();
         if(!hdl->in_use_p()) continue;
         if(hdl->is_rdata()) {
@@ -266,7 +270,7 @@ namespace rubinius {
           }
         }
       }
-    } while(process_mark_stack());
+    } while(process_mark_stack(memory_->collect_mature_now));
 
     // We've now finished marking the entire object graph.
     // Clean weakrefs before keeping additional objects alive
@@ -279,13 +283,14 @@ namespace rubinius {
     do {
       walk_finalizers();
       scan_fibers(data, true);
-    } while(process_mark_stack());
+    } while(process_mark_stack(memory_->collect_mature_now));
 
     // Remove unreachable locked objects still in the list
     if(data->threads()) {
       for(ThreadList::iterator i = data->threads()->begin();
           i != data->threads()->end();
-          ++i) {
+          ++i)
+      {
         clean_locked_objects(*i, false);
       }
     }
@@ -343,8 +348,8 @@ namespace rubinius {
     }
   }
 
-  bool ImmixGC::process_mark_stack(int count) {
-    return gc_.process_mark_stack(allocator_, count);
+  bool ImmixGC::process_mark_stack(bool& exit) {
+    return gc_.process_mark_stack(allocator_, exit);
   }
 
   immix::MarkStack& ImmixGC::mark_stack() {
diff --git a/vm/gc/immix.hpp b/vm/gc/immix.hpp
@@ -146,6 +146,7 @@ namespace rubinius {
 
     immix::GC<ObjectDescriber> gc_;
     immix::ExpandingAllocator allocator_;
+    ObjectMemory* memory_;
     ImmixMarker* marker_;
     int chunks_left_;
     int chunks_before_collection_;
@@ -171,6 +172,10 @@ namespace rubinius {
     ObjectPosition validate_object(Object*);
 
   public: // Inline
+    ObjectMemory* memory() {
+      return memory_;
+    }
+
     size_t& bytes_allocated() {
       return gc_.bytes_allocated();
     }
@@ -188,7 +193,7 @@ namespace rubinius {
     }
 
     void start_marker(STATE);
-    bool process_mark_stack(int count = 0);
+    bool process_mark_stack(bool& exit);
     immix::MarkStack& mark_stack();
 
   private:
diff --git a/vm/gc/immix_marker.cpp b/vm/gc/immix_marker.cpp
@@ -87,7 +87,7 @@ namespace rubinius {
           // number, based mostly on the fact it didn't cause
           // big increases in young gc times because of long
           // stop the world wait times.
-          while(immix_->process_mark_stack(100)) {
+          while(immix_->process_mark_stack(immix_->memory()->collect_mature_now)) {
             if(state->shared().thread_nexus()->stop_p()) {
               state->shared().thread_nexus()->yielding(state->vm());
             }
diff --git a/vm/util/immix.hpp b/vm/util/immix.hpp
@@ -1085,18 +1085,16 @@ namespace immix {
     /**
      * Calls the Describer to scan from each of the Addresses in the mark stack.
      */
-    bool process_mark_stack(Allocator& alloc, int count = 0) {
+    bool process_mark_stack(Allocator& alloc, bool& exit) {
       Marker<Describer> mark(this, alloc);
 
       if(mark_stack_.empty()) return false;
 
       // Use while() since mark_stack_ is modified as we walk it.
-      while(!mark_stack_.empty()) {
+      while(!mark_stack_.empty() && !exit) {
         Address addr = mark_stack_.back();
         mark_stack_.pop_back();
         desc.walk_pointers(addr, mark);
-        count--;
-        if(count == 0) return true;
       }
 
       return true;

Original file line number	Diff line number	Diff line change
`@@ -87,7 +87,7 @@ namespace rubinius {`
`87`	`87`	`// number, based mostly on the fact it didn't cause`
`88`	`88`	`// big increases in young gc times because of long`
`89`	`89`	`// stop the world wait times.`
`90`		`- while(immix_->process_mark_stack(100)) {`
	`90`	`+ while(immix_->process_mark_stack(immix_->memory()->collect_mature_now)) {`
`91`	`91`	`if(state->shared().thread_nexus()->stop_p()) {`
`92`	`92`	`state->shared().thread_nexus()->yielding(state->vm());`
`93`	`93`	`}`